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EventLogEntryCollection (Clase)

Actualización: noviembre 2007

Define el tamaño y los enumeradores de una colección de instancias de EventLogEntry.

Espacio de nombres:  System.Diagnostics
Ensamblado:  System (en System.dll)

public class EventLogEntryCollection : ICollection, 
	IEnumerable
public class EventLogEntryCollection implements ICollection, 
	IEnumerable
public class EventLogEntryCollection implements ICollection, IEnumerable

Utilice la clase EventLogEntryCollection cuando lea las entradas asociadas a una instancia de EventLog. La propiedad EventLog de la clase Entries es una colección de todas las entradas del registro de eventos.

Dado que las nuevas entradas se agregan a la lista, el recorrido paso a paso por la colección permite el acceso a las entradas que se crearon después de EventLogEntryCollection. Sin embargo, después de examinar toda la lista, ésta no se actualiza con nuevas entradas.

El ejemplo siguiente muestra cómo obtener información del registro de eventos de un objeto EventLogEntryCollection.

using System;
using System.Collections;
using System.Diagnostics;

class EventLogEntryCollection_Item
{
    public static void Main()
    {
        try
        {
            string myLogName = "MyNewLog";
            // Check if the source exists.
            if (!EventLog.SourceExists("MySource"))
            {
                // Create the source.
                // An event log source should not be created and immediately used.
                // There is a latency time to enable the source, it should be created
                // prior to executing the application that uses the source.
                // Execute this sample a second time to use the new source.
                EventLog.CreateEventSource("MySource", myLogName);
                Console.WriteLine("Creating EventSource");
                Console.WriteLine("Exiting, execute the application a second time to use the source.");
                // The source is created.  Exit the application to allow it to be registered.
                return;
            }
            else
                // Get the EventLog associated if the source exists.
                myLogName = EventLog.LogNameFromSourceName("MySource", ".");

            // Create an EventLog instance and assign its source.
            EventLog myEventLog2 = new EventLog();
            myEventLog2.Source = "MySource";
            // Write an informational entry to the event log.
            myEventLog2.WriteEntry("Successfully created a new Entry in the Log");
            myEventLog2.Close();
            // Create a new EventLog object.
            EventLog myEventLog1 = new EventLog();
            myEventLog1.Log = myLogName;

            // Obtain the Log Entries of "MyNewLog".
            EventLogEntryCollection myEventLogEntryCollection =
               myEventLog1.Entries;
            myEventLog1.Close();
            Console.WriteLine("The number of entries in 'MyNewLog' = "
               + myEventLogEntryCollection.Count);

            // Display the 'Message' property of EventLogEntry.
            for (int i = 0; i < myEventLogEntryCollection.Count; i++)
            {
                Console.WriteLine("The Message of the EventLog is :"
                   + myEventLogEntryCollection[i].Message);
            }

            // Copy the EventLog entries to Array of type EventLogEntry.
            EventLogEntry[] myEventLogEntryArray =
               new EventLogEntry[myEventLogEntryCollection.Count];
            myEventLogEntryCollection.CopyTo(myEventLogEntryArray, 0);
            IEnumerator myEnumerator = myEventLogEntryArray.GetEnumerator();
            while (myEnumerator.MoveNext())
            {
                EventLogEntry myEventLogEntry = (EventLogEntry)myEnumerator.Current;
                Console.WriteLine("The LocalTime the Event is generated is "
                   + myEventLogEntry.TimeGenerated);
            }
        }
        catch (Exception e)
        {
            Console.WriteLine("Exception:{0}", e.Message);
        }
    }
}


import System.*;
import System.Collections.*;
import System.Diagnostics.*;

class EventLogEntryCollectionItem
{
    public static void main(String[] args)
    {
        try {
            String myLogName = "MyNewLog";

            // Check if the source exists.
            if (!(EventLog.SourceExists("MySource"))) {
                //Create source.
                EventLog.CreateEventSource("MySource", myLogName);
                Console.WriteLine("Creating EventSource");
            }
            else {
                // Get the EventLog associated if the source exists.
                myLogName = EventLog.LogNameFromSourceName("MySource", ".");
            }

            // Create an EventLog instance and assign its source.
            EventLog myEventLog2 = new EventLog();
            myEventLog2.set_Source("MySource");

            // Write an informational entry to the event log.
            myEventLog2.WriteEntry("Successfully created a new Entry in "
                + "the Log");
            myEventLog2.Close();

            // Create a new EventLog object.
            EventLog myEventLog1 = new EventLog();
            myEventLog1.set_Log(myLogName);

            // Obtain the Log Entries of "MyNewLog".
            EventLogEntryCollection myEventLogEntryCollection = 
                myEventLog1.get_Entries();

            myEventLog1.Close();
            Console.WriteLine("The number of entries in 'MyNewLog' = " 
                + myEventLogEntryCollection.get_Count());

            // Display the 'Message' property of EventLogEntry.
            for (int i = 0; i < myEventLogEntryCollection.get_Count(); i++) {
                Console.WriteLine("The Message of the EventLog is :"
                    + myEventLogEntryCollection.get_Item(i).get_Message());
            }
            // Copy the EventLog entries to Array of type EventLogEntry.
            EventLogEntry myEventLogEntryArray[] = 
                new EventLogEntry[myEventLogEntryCollection.get_Count()];

            myEventLogEntryCollection.CopyTo(myEventLogEntryArray, 0);
            IEnumerator myEnumerator = myEventLogEntryArray.GetEnumerator();
            while (myEnumerator.MoveNext()) {
                EventLogEntry myEventLogEntry = 
                    (EventLogEntry)myEnumerator.get_Current();
                Console.WriteLine("The LocalTime the Event is generated is " 
                    + myEventLogEntry.get_TimeGenerated());
            }
        }
        catch (System.Exception e) {
            Console.WriteLine("Exception:{0}", e.get_Message());
        }
    } //main
} //EventLogEntryCollectionItem


System.Object
  System.Diagnostics.EventLogEntryCollection

Todos los miembros static (Shared en Visual Basic) públicos de este tipo son seguros para la ejecución de subprocesos. No se garantiza que los miembros de instancias sean seguros para la ejecución de subprocesos.

Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

.NET Framework y .NET Compact Framework no admiten todas las versiones de cada plataforma. Para obtener una lista de las versiones compatibles, vea Requisitos de sistema de .NET Framework.

.NET Framework

Compatible con: 3.5, 3.0, 2.0, 1.1, 1.0

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